<template>
  <a-date-picker
    :disabled="disabled || readOnly"
    :placeholder="placeholder"
    @change="handleDateChange"
    :value="momVal"
    :showTime="showTime"
    :format="dateFormat"
    :getCalendarContainer="getCalendarContainer"
  />
</template>
<script>
//import moment from 'moment'
export default {
  name: "JDate",
  props: {
    placeholder: {
      type: String,
      default: "",
      required: false
    },
    value: {
      type: String,
      required: false
    },
    dateFormat: {
      type: String,
      default: "YYYY-MM-DD",
      required: false
    },
    //此属性可以被废弃了
    triggerChange: {
      type: Boolean,
      required: false,
      default: false
    },
    readOnly: {
      type: Boolean,
      required: false,
      default: false
    },
    disabled: {
      type: Boolean,
      required: false,
      default: false
    },
    showTime: {
      type: Boolean,
      required: false,
      default: false
    },
    getCalendarContainer: {
      type: Function,
      default: () => document.body
    }
  },
  data() {
    let dateStr = this.value;
    return {
      decorator: "",
      momVal: !dateStr ? null : moment(dateStr, this.dateFormat)
    };
  },
  watch: {
    value(val) {
      if (!val) {
        this.momVal = null;
      } else {
        this.momVal = moment(val, this.dateFormat);
      }
    }
  },
  methods: {
    moment,
    handleDateChange(mom, dateStr) {
      this.$emit("change", dateStr);
    }
  },
  //2.2新增 在组件内定义 指定父组件调用时候的传值属性和事件类型 这个牛逼
  model: {
    prop: "value",
    event: "change"
  }
};
</script>
